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Finding the Fourth Proportional to 290,329.92, 400,782.24 and 169,425.24

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Solution

The fourth proportional to 290,329.92, 400,782.24 and 169,425.24 is: 233,880.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,329.92 : 400,782.24 = 169,425.24 : x
  2. Step 2: Convert to fraction form
    290,329.92/400,782.24 = 169,425.24/x
  3. Step 3: Cross multiply
    290,329.92x = 400,782.24 × 169,425.24
  4. Step 4: Simplify right side
    290,329.92x = 67,902,627,199.74
  5. Step 5: Solve for x
    x = 67,902,627,199.74/290,329.92
  6. Step 6: Final answer
    x = 233,880.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.